llvm dev - Feb 2015 - [LLVMdev] Debug info not preserved by llvm-as (LLParser)?

Hi there,

If I run:

  clang -S -emit-llvm -o - -g test.c

for a trivial test.c I see debug info in the IR as expected.  However, if I run:

  clang -S -emit-llvm -o - -g test.c | llvm-as | llvm-dis

the debug info is stripped.  Is this intentional?  If so, is there a way to
force the debug metadata to make its way through the pipeline?  This is on
either LLVM 3.5 or LLVM 3.4.

This has come up for me because I was hoping to provide IR in place of source
code in a certain part of our application and while it works any unit tests that
rely on debug info are broken.  Tracking down the issue let me to this.

Peter Zion

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